Results for fuel pressure, scan for trouble codes, scan for dtcs, tires have no traction on a curve, vehicle makes a loud sound, loud clunk noise, check engine light on, vehicle recall, wheel alignment, tsb, when I push the gas pedal it putts like it is out of gas, wheel balance, technical service bulletin

Hi Sierra.
Have the LeSabre's front and rear suspension checked for loose or worn suspension components for your clunking noise. Check the tires for uneven wear, balance and alignment. There is a technical service bulletin (TSB) that might apply. It is called "Info on popping or thunk noise...